Apparatus for regulating the effective surface of the radiators of aeroplane-engines



. .1. J. M. A. E. SCHNEIDER.- APPARATUS FOR REGULATING THE-EFFECTIVFSURFACE AEROPLANE ENGINES.

APPLICATION TILED FEB. 28, I920. 1,374,610. 4-

OF THE RADIATORS 0F Patented Apr. 12', 1921.

4 SHEETSSHEET l- J. J. M. A. El SCHNEIDER.

n a 9&1 59 CI H S as on rT fpn m w E .0 d4 M m m P AEROPLANE ENGINES. APPLICATION FILED FEB. 23. 1920.

TING THEEEFFECTIVE SURFACE QF THE APPARATUS FOR REGULA 1. M. A. E. SCHNEIDER.

APPARATUS FOR REGUEATING THE EFFECTIVE SURFACE OF THE RAD IATORS 0F AEROPLANE ENGINES. APPLICATION FILED FEB. 28, 1920.

Patented Apr- 12; 1921.

4 SHEETS-SHEET 3- J. I. M. A. E. SCHNEIDER. -0 I APPARATUS FOR REGUL'ATING THE EFFECTIVE SURFACE OF THE RADIATOR 'S 0F .0

AEROPLANE ENGINES. APPLICATION FILED FEB. 28. I920.

Patented Apr. 12, 1921.;

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JEAN JULES MARIE ANTOINE EUGENE SCHNEIDER, OF PARIS, FRANCE.

APPARATUS FOR RFGULATING THE EFFECTIVE SURFACE OF THE.RADIATORS OF To all whom it may concern Be it known that I, JEAN JULE's MARIE AN'roINE EUGENE SCHNEIDER, a citizen of the Republic of France, and resident of Paris, France, have invented new and useful- Improvements in Apparatus for Regulating the Effective Surface of the Radiators of Aeroplane-Engines, which invention is fully set forth in the following specification.

This invention has for its object to provide an improved apparatus. forregulating the effective surface of the radiators of aeroplane engines.

The improved apparatus comprises a movable screen and is so constructed that in any position it will offer only a minimum resistance to the progress of the aeroplane.

According to this invention the screen is constituted by a sheath of metal plate or other suitable materials and has a fusiform cross section and is adapted to slide longitudinally along the radiator so as to be caused to cover a greater or less extent of the latter. For this purpose a guide for the said sheath is provided on the radiator body.

I According to one embodiment of this invention the guide for a sliding member fixed to the sheath of fusiform section, is constituted by pads that inclose the water boxes and have likewise a fusiform cross section. By meansof these fixed pads that inclose the water boxes of the radiator, the combination of the latter and the movable screen canbe' supportedon the aeroplane.

Figures 1 to 4 of the accompanying drawings illustratea first constructional form of this invention. I g

Figs. 1. and 1 together constitute a front elevation of the radiator with the inventionapplied thereto, Fig. 1 showing the radiator in masked position and Fig. 1* in unmasked position. 1 j

Fig. 2 shows'one of the elements ofithe mask partly in elevation and partly in 1ongitudinal section.

Fig. 3 is a horizontal section on the line 33 of Fig. 2.

Fig. 4 is a diagram of a device for operating the two elements of the mask by means of a common drive. 7

Figs. 5. and 5 together constitute another I form of the invention, showing the same in AEROPLANE-ENGINES.

Specification of Letters Patent. Patented Apr. 12, 1921. Application filed February 28, 1920. Serial No. 362,122. I

front elevation, Fig. 5 showing the radiator unmasked and Fig. 5? showing the same masked.

Fig. 6 is a vertical section on the line 6-6, and Fig. 7 is a horizontal section on the line 77, of Fig. 5.

In Figs. 1 to 4, A is the body of a radiator of known construction shown diagrammatically. B and B are respectively the upper and lower water boxes.

The mask is composed of two elements C arranged symmetrically plane ofthe axis w-a. Each of these elements consists of ,a sheath of metal plate having a fusiform cross section .(Fig. 2).

in relation to the- These sheaths constitute casings closed on the outer side by a solid end cof suitable cross section for facilitating the flow of the air. On the inner side the opposite end 0 is recessed in such a manner as to engage with a slight amount of play the body A of the radiator and the pads D, D in which the water boxes 13,13 are inclosed: These pads extend the whole length of the corresponding boxes. They have a fusiform cross sec; tion (Fig. 2) and are recessed and so constructed as to serve as .slideways d, d for slidingmembers E, E fixed to the sheaths C.

The girder-shaped sliding members E, E are of course made of suitable length as shown in Fig. 1, to allow the inner ,ends 6, e of the elements to have a sufficient length of course until they meet each other in the axial plane (Jr-a, while assurin for the said members the desired fixing in t e unmasked position of the radiator.

The whole of the radiator andthe. masks may be supported'on the aeroplane by a suitable attachment of the pads D, D to the framework of the aeroplane. The inclination'of the pads D, D to each other may. be varied so as to give to the sort of funnelshaped passage which they form forthe entry and fiow of the air, the desired converging or diverging shape.

The moving of the elements C toward each other for the purpose of diminishing the effective surface of the radiator as well as the moving of these elements away from each other for the reverse purpose, may be effected by means of any suitable actuatin mechanism; for instance each element I may be provided as shown in Fig. 4 with anattachment for a rope f-f guided by means of fixed'p'ulleys G, H and I.

If the stretch of rope f (shown in full lines) is pulled in the direction of the ,arrow 1,this will have the eflect of moving the points of attachment F nearer to each other, and consequently bringing the sheaths C into the position shownin the left 'hand portion of Fig. 1 wherein they mask a portion of the radiator, or into any other intermediate position. A pull exerted upon the stretch of rope f (indicated in dot and dash lines) in the direction of thearrow 2, will have the effect of moving the points of attachment F away from. each other.

'Figs. 5, 6 and 7 illustrate another embodiment of this invention wherein each of the sheaths, instead of being formed by a casing slidable as a whole, comprises afixed element outside the radiator, and into which element the mask proper composed of telescopic elements is adapted to be moved into inoperative position.

Fig. 5 illustrates in its left hand half partly in section partly inelevation the left hand mask rendered inoperative by moving into the outer fixed element ofithe sheath.

In the right hand half of this figure the mask is shown fully opened out.

Each sheath comprisesa' fixed element C outside the radiator, adapted to be attached to the water boxes of the latter by suitable attachment devices, such as for" instance the angles J. The outer ends of these angles may be fixed to a reinforcing girder of the fixed element C, as shown in the drawing.

Their inner ends together with the' water boxes B, B are adapted to serve as guides for angles'c that are fixed to the inner wall of the extreme inner sheath; elements C An actuating mechanism similar to the one described for use with the preceding construction or any other suitable mechanism, may comprise for the rope f--f attaching eyelets formed on one end of rods that are fixed at their other ends to the inplane engines, the combination ofthe radiator, upper and lower water boxes there on, pads on said boxes having slideways formed therein, a sheath having sliding engagement with said slideways, and means for actuating said sheath in either direction on said slideways.

v 3. In an apparatus for regulating the effective surface of the. radiators of aeroplane engines, as claimed in claim 1, a sheath composed of a .plurality of telescoping elements, the larger outer element being attached to the guide on the radiator body and serving as a guide for the smaller inner element.

4. In apparatus for regulating the effec tive surfaces of the radiators of aeroplane engines, the combination of a radiator body,

'fillld a stream-lined sheath movable over the radiator body to inclose the same.

-5. In apparatus for regulating the efl'ec tive surface of the radiators of aeroplane engines, the combmatlon of a radiator body, and a stream-hnedsheath composed of a plurality of telescopic elements extendible' overthe radiator body to inclose the same.

In testimony whereof I have signed this.

specification.

JEAN JIILES MARIE ANTOINE EUGENE SCHNEIDER.

Witnesses:

ANDRE M osrroxen, Loo'rs Gaimar. 

